Housing for a cable modem



FIG. 1 is a right, front and top isometric view of a housing for a cable modem showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a rear elevational view thereof, and,

FIG. 4 is a left side elevational view thereof.

The broken line showings of FIG. 1 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a housing for a cable modem, as shown and decribed. 